寒区隧道纵向温度场分布规律研究  

Longitudinal Temperature Distribution Patterns in Cold Area Tunnels

作　　者：王志杰[1,2] 谢盛昊 范文昊 王磊 马志富 杨昌贤 林铭 周飞聪 WANG Zhijie;XIE Shenghao;FAN Wenhao;WANG Lei;MA Zhifu;YANG Changxian;LIN Ming;ZHOU Feicong(Key Laboratory of Transportation Tunnel Engineering,the Ministry of Education,Southwest Jiaotong University,Chengdu 610031,Sichuan,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan,China;Heilongjiang Railway Development Group Co.,Ltd.,Harbin 150000,Heilongjiang,China;China Railway Design Corporation,Tianjin 300308,China)

机构地区：[1]西南交通大学交通隧道工程教育部重点实验室,四川成都610031 [2]西南交通大学土木工程学院,四川成都610031 [3]黑龙江铁路发展集团有限公司,黑龙江哈尔滨150000 [4]中国铁路设计集团有限公司,天津300308

出　　处：《隧道建设（中英文）》2023年第10期1692-1701,共10页Tunnel Construction

基　　金：国家自然科学基金(52278417)。

摘　　要：为探究寒区隧道纵向温度场分布规律及其影响要素,以哈牡高速铁路鲜丰隧道工程为例,建立寒区隧道三维流固热耦合模型,并采用通风时间、等效自然风流速度及进洞风温3个变量,探究不同变量条件下寒区隧道纵向温度分布规律及变化特点,在此基础上提出寒区隧道洞内纵向温度预测公式。研究结果表示:1)寒区隧道洞内纵向温度随着进洞距离的增加呈先上升后下降的趋势;2)随着通风时间的增加,寒区隧道洞内各个断面温度逐渐降低,且在通风60 d左右逐渐趋于稳定;3)随着等效自然风流速度的增大,隧道内纵向温度会降低;4)进洞风温对隧道洞内温度场的分布具有直接影响,随着进洞距离的增加,进洞风温对洞内温度场的影响逐渐减小。To investigate the longitudinal temperature field distribution patterns and influencing factors of tunnels located in cold areas,a case study is conducted on the Xianfeng tunnel of the Harbin-Mudanjiang high-speed railway,and a three-dimensional fluid-solid thermal coupling model is established for cold area tunnels.Variables such as ventilation time,equivalent wind speed,and wind temperature are used to investigate the longitudinal temperature distribution trends and variations in these tunnels.Ultimately,a calculation formula for the longitudinal tunnel temperature in cold area tunnels is derived.The main conclusions can be summarized as follows:(1)The temperature inside the tunnel increases and then decreases as one moves further.(2)The temperature in each tunnel section in the cold area gradually decreases with increasing ventilation time,eventually stabilizing after 60 days of ventilation.(3)The temperature in the longitudinal direction of the tunnel decreases with increasing equivalent wind speed.(4)The inlet wind temperature directly impacts the tunnel′s temperature field,but its influence weakens as one moves further into the tunnel.

关 键 词：寒区隧道 纵向温度场 通风时间 进洞风温 等效自然风流速度 

分 类 号：U45[建筑科学—桥梁与隧道工程]